:host {
    ::ng-deep {
        .key-item {
            .key-mgnt-tools {
                opacity: 0;
                visibility: hidden;
                transition: opacity 0.3s;

                i {
                    color: #bfbfbf;
                    transition: color 0.3s;

                    &:hover {
                        color: #1890ff;
                    }
                }
            }

            &.ant-menu-item-selected {
                .key-mgnt-tools {
                    opacity: 1;
                    visibility: visible;
                }
            }
        }

        .alone-btn {
            transition: color 0.3s;

            &:hover {
                color: #1890ff;
            }
        }
    }
}